Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Whta is earthing?What is the optimum value of Earth Pit?

Bharti,

2 6381

What is SMPS,How does it works?

Bharti, TCS,

4 14014

1.stranded resistance values of motors? 2.how to calculate the resistance values of single phase and 3phase motors?

Bell, L&T,

2 7103

if transformer winding burn on dc supply then why not alternator rotor winding please post answer on y.sakhare@rediffmail.com

MahaGenco,

4 10021

through which medium return supply given to alternator please answer in details

MahaGenco,

1 4838

If a Power Transformer Fails and the transformer manufacturer suggest that "Do all electrical test on the transformer?". What are the test to be conducted in this condition?

5 7525

What is the method of Tan delta test for power Transformes and why it is required.

1 5786

What is the method & formula of Fault level calculation in power Transformesr.

3 6354

How to calculate the sag on transmission Lines.

3013

where we use compound motors in real time and why?

TATA,

2 5603

How much resistance between neutral earthing and body earthing of Power transformer?

1 4263

in the thermal power plant, why we use the condenser (for cooling the steam) when we have to heat the steam again. i mean why we are cooling the steam,

6 10664

what is the simple meaning of harmonics?

4 7291

what's the meaning of the negative going half cycle in the circuit containing a bulb and a switch in series with a input ac source. i mean what happens in the -ve cycle. the dir. of current changes or any other thing. if dir. changes then why we use fuse in only phase wire.

2 5469

I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.

2 5619

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Un-Answered Questions { Electrical Engineering }

What are the advantages and disadvantages of short-pitched winding?

1097

why core is useful for a transformer ?and also in its operation ?

2100

sail kaott diploma ece ke interviw me qus.kis parkar ke aate hai aur G.S me kya puchate hai kya sameedyaan me kis parkar ke qu.puchate hai

3439

diff.between servo motor and ac motor

2052

what is the function and use of cable differential protection relay?

2916

DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1901

what is the Transformer Impedence?How can calculate?

2097

what is vA rating and class of a ct.

1863

Why colled 440V to 3-phase supply.

2148

How much minimum insulation required between 11kv/3.3kv transformer windings?

2430

what is the isolation transformer. what is the isolator?

2073

what is the meaning of 0.5ohm Resistance

1861

Classify driling machines.

1117

formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

2207

How does PLC work for sychronising of Two or more DG sets?

2076

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